Six patients (1, 2, 4–7) exhibited epilepsy, with age of seizure onset ranging from 2 months to 10 years. While seizures were well controlled by medication in 4 patients, patient 7 presented rare generalized tonic-clonic seizures and focal dyscognitive seizures and patient 6 had a history of EOEE followed by drug-resistant focal epilepsy with dyscognitive seizures. Patient 3 never had seizures and died at age 4 years.
